X10 CM15A is not sending or receiving commands to X10 devices, I have tested this on the core and a netMD and got the same results.I did a router reload and tried a reboot, I have a trac ticket open with some clips from the log.http://svn.linuxmce.org/trac.cgi/ticket/1616

I had this issue as well. Is your pc, that the hardware is attached to, newer? I found I could get it to work on an older machine. I also had luck with a powered usb hub but very inconsistently. I could not get to the bottom of it and gave up. I picked up an insteon. They send/recieve x-10 just fine and you can start using insteon devices. Plus the insteon is serial...

I got tired of trying to get the CMA15 to work. It might have been just hardware but it did work ok in AHP.

Insteon CMA does interpret the signal from my X10 transceiver fine. I did have to make some substantial changes to the code in the device template to get it to work with X10 though. If this is the way you want to go let me know and I can get the changes to you. Some day when I clean it up I will update that sqlCVS.